JP2002274438A - Vehicle body structure - Google Patents
Vehicle body structureInfo
- Publication number
- JP2002274438A JP2002274438A JP2001082902A JP2001082902A JP2002274438A JP 2002274438 A JP2002274438 A JP 2002274438A JP 2001082902 A JP2001082902 A JP 2001082902A JP 2001082902 A JP2001082902 A JP 2001082902A JP 2002274438 A JP2002274438 A JP 2002274438A
- Authority
- JP
- Japan
- Prior art keywords
- cross member
- vehicle body
- floor
- cross
- side sill
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
- B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
- B62D25/2036—Floors or bottom sub-units in connection with other superstructure subunits the subunits being side panels, sills or pillars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/02—Side panels
- B62D25/025—Side sills thereof
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、自動車の側面衝突
対応構造として用いて好適の、車体構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle body structure suitable for use as a structure corresponding to a side collision of an automobile.
【0002】[0002]
【従来の技術】自動車において、側面衝突に対応するに
は車体の側部、特にフロア部分の構造が重要である。例
えば図8は自動車(いわゆるセダン型の乗用車)のフロ
アのフロント側部及びその近傍の従来構造を示す斜視図
である。図8に示すように、フロントフロア11の側縁
部にはサイドシル12が配設され、サイドシル12の上
方にはセンタピラー13が立設されている。2. Description of the Related Art In an automobile, the structure of a side portion of a vehicle body, particularly a floor portion, is important in order to cope with a side collision. For example, FIG. 8 is a perspective view showing a conventional structure near a front side of a floor of an automobile (so-called sedan type passenger car) and its vicinity. As shown in FIG. 8, a side sill 12 is disposed on a side edge of the front floor 11, and a center pillar 13 is erected above the side sill 12.
【0003】また、フロントフロア11上のサイドシル
12とフロントフロア11中央のバックボーン(フロア
トンネル)14との間のシート配置箇所の近傍には、フ
ロントフロアクロスメンバフロント15とフロントフロ
アクロスメンバリヤ16とが配設されている。なお、図
8中、符号17はシート取付ブラケットである。このよ
うなクロスメンバ15,16は、車両の側方からの衝撃
(側面衝撃)に対抗するのに有効である。In the vicinity of a seat arrangement position between a side sill 12 on the front floor 11 and a backbone (floor tunnel) 14 at the center of the front floor 11, a front floor cross member front 15 and a front floor cross member rear 16 are provided. Are arranged. In FIG. 8, reference numeral 17 denotes a seat mounting bracket. Such cross members 15 and 16 are effective in resisting impact (side impact) from the side of the vehicle.
【0004】つまり、車両の車室部分の側面に衝撃が加
わる場合、一般に、衝撃入力は、センタピラー13,フ
ロントドア,リヤドア(何れも図示略)の下部に加わる
ことになる。特に、センタピラー13自体に衝撃が加わ
る場合はもちろんのこと、フロントドアやリヤドアに加
わった衝撃もセンタピラー13に伝達されることになる
ので、側面衝突に対してセンタピラー13(特にその下
部)が車室内側へ進入し易く、この車室内への進入を抑
制することが側面衝突対策になる。このようにセンタピ
ラー13の車室内側への進入に対抗するには、センタピ
ラー13の基部を支持するフロントフロア11の剛性が
重要であり、中でも車幅方向に配設されたクロスメンバ
15,16の寄与度が最も高い。That is, when an impact is applied to the side surface of the cabin of the vehicle, the impact is generally applied to the lower portion of the center pillar 13, the front door, and the rear door (all are not shown). In particular, not only when the impact is applied to the center pillar 13 itself, but also the impact applied to the front door and the rear door is transmitted to the center pillar 13, so that the center pillar 13 (particularly, the lower portion) is protected against a side collision. Can easily enter the vehicle interior, and suppressing the entry into the vehicle interior is a countermeasure against side collision. In order to counter the entry of the center pillar 13 into the vehicle cabin, the rigidity of the front floor 11 supporting the base of the center pillar 13 is important, and in particular, the cross members 15, which are arranged in the vehicle width direction, are important. 16 have the highest contribution.
【0005】[0005]
【発明が解決しようとする課題】ところで、フロントフ
ロア11の二本のクロスメンバ15,16は、図9に示
すようにハット型断面を有しており、これらのクロスメ
ンバ15,16の剛性を高めるには、その断面形状を大
きくすること、特にその高さH1,H2を高くすること
が極めて有効である。The two cross members 15 and 16 of the front floor 11 have a hat-shaped cross section as shown in FIG. 9, and the rigidity of the cross members 15 and 16 is reduced. To increase the height, it is extremely effective to increase the cross-sectional shape, particularly to increase the heights H1 and H2.
【0006】しかしながら、これらのクロスメンバ1
5,16の上方にはフロントシートが配設されるので、
クロスメンバ15,16の高さを大きくするなど断面を
大きくすることは困難である。とりわけ、フロントフロ
アクロスメンバリヤ16はセンタピラー13の基部付近
に位置しセンタピラー13の車室内側への進入抑制に重
要であるが、このフロントフロアクロスメンバリヤ16
は、後部座席の足元付近に位置しているため極力高さを
抑える必要があり、剛性を十分に高めることができな
い。However, these cross members 1
Since the front seats are arranged above 5,16,
It is difficult to increase the cross section by increasing the height of the cross members 15 and 16. In particular, the front floor cross member rear 16 is located near the base of the center pillar 13 and is important for preventing the center pillar 13 from entering the vehicle interior.
Is located near the foot of the rear seat, it is necessary to minimize the height, and the rigidity cannot be sufficiently increased.
【0007】このため、想定する側面衝撃の大きさが小
さければ、クロスメンバ15,16によるフロントフロ
ア11補強のみで対応が可能であるが、より大きな側面
衝撃を想定した場合、クロスメンバ15,16によって
フロントフロア11を補強するのみでは対応が困難であ
り、センタピラー13やサイドシル12さらにはフロン
トピラー(図示略)等を大幅に補強することが必要にな
る。For this reason, if the magnitude of the assumed side impact is small, it can be dealt with only by reinforcing the front floor 11 with the cross members 15 and 16, but if a larger side impact is assumed, the cross members 15 and 16 can be handled. Therefore, it is difficult to cope with the problem only by reinforcing the front floor 11, and it is necessary to greatly reinforce the center pillar 13, the side sill 12, and the front pillar (not shown).
【0008】このようにピラーやサイドシル等の補強に
より側面衝撃に対応するのは、決して効率の良い対応策
とは言えない。ところで、実用新案登録第256729
0号公報には、上記のフロントフロアクロスメンバリヤ
16に相当する第3クロスメンバが後部座席の足元付近
に位置しており高さを抑える必要からこれ自体の剛性を
高め難いため、側面衝突時にこの第3クロスメンバに加
わる荷重を、第3クロスメンバの前方に設けられた第1
クロスメンバ(上記のフロントフロアクロスメンバフロ
ント15に相当する)と第3クロスメンバの後方に設け
られた第2クロスメンバ(後部座席のしたに設けられる
ものと思われる)とによって分担する構成が開示されて
いる。しかしながら、この場合には、ピラーやサイドシ
ル等の負担が大きくやはりこれらの補強が必要になり、
上記と同様の課題がある。[0008] In this way, responding to the side impact by reinforcing the pillars and the side sills is not an efficient measure. By the way, Utility Model Registration No. 256729
No. 0 discloses that the third cross member corresponding to the front floor cross member rear 16 is located in the vicinity of the foot of the rear seat, and it is difficult to increase the rigidity of the third cross member. The load applied to the third cross member is changed by the first cross member provided in front of the third cross member.
A configuration in which a cross member (corresponding to the front floor cross member front 15 described above) and a second cross member provided behind the third cross member (supposed to be provided beside the rear seat) is disclosed. Have been. However, in this case, the burden on pillars and side sills is large, and it is necessary to reinforce them.
There are similar issues as above.
【0009】本発明はこのような課題に鑑み案出された
もので、より簡素な補強構造によって効率よく大きな側
面衝撃に対応することができるようにした、車体構造を
提供することを目的とする。The present invention has been devised in view of such a problem, and an object of the present invention is to provide a vehicle body structure capable of efficiently coping with a large side impact with a simpler reinforcing structure. .
【0010】[0010]
【課題を解決するための手段】上記目標を達成するた
め、請求項1にかかる本発明の車体構造では、車体両側
部に配設されたサイドシル部と車体中央部の前後方向に
配設されたフロアトンネル部との間に配設されたフロア
部上に、第1クロスメンバ部材と第2クロスメンバ部材
と第3クロスメンバ部材とが設けられている。In order to achieve the above object, in the vehicle body structure according to the first aspect of the present invention, side sill portions provided on both sides of the vehicle body and front and rear directions of the center portion of the vehicle body are provided. A first cross member, a second cross member, and a third cross member are provided on a floor disposed between the floor tunnel.
【0011】第1クロスメンバ部材は、一端縁が該サイ
ドシル部に取り付けられるとともに他端縁が該フロアト
ンネル部に取り付けられてシートの前側を支持し、第2
クロスメンバ部材は、一端縁が該サイドシル部に取り付
けられるとともに他端縁が該フロアトンネル部に取り付
けられて該シートの後側を支持する。また、第3クロス
メンバ部材は、該第1クロスメンバ部材と該第2クロス
メンバ部材との間に並列して配設され一端縁が該サイド
シル部に前縁が該第1クロスメンバ部材に後縁が該第2
クロスメンバ部材にそれぞれ取り付けられている。The first cross member has one end attached to the side sill and the other end attached to the floor tunnel to support the front side of the seat.
The cross member member has one end attached to the side sill portion and the other end attached to the floor tunnel portion to support the rear side of the seat. Further, the third cross member member is disposed in parallel between the first cross member member and the second cross member member, and has one end edge at the side sill portion and a front edge at the rear side at the first cross member member. The edge is the second
Each is attached to a cross member member.
【0012】このため、車体側部に側面衝突があると、
この衝撃に対して、第1クロスメンバ部材と第2クロス
メンバ部材とが対応するのに加えて第3クロスメンバ部
材も対応するようになり、大きな側面衝突に対しても車
体側部の車内側への進入を抑制することが容易になる。
なお、第3クロスメンバ部材の他端縁をフロアトンネル
部に取り付けることは特に固定することを要件にしてい
ないが、これはこの部分の取付が構造上困難と考えられ
るためであり、可能であれば第3クロスメンバ部材の他
端縁をフロアトンネル部に取り付けても良い。また、第
3クロスメンバ部材の他端縁をフロアトンネル部に取り
付けない場合には、両者間にクリアランスを設けること
が好ましく、これにより、走行時の車体の捩れに起因し
た両者間の接触音を回避でき、車室内騒音の発生を抑え
ることができる。Therefore, if there is a side collision on the side of the vehicle body,
The first cross member member and the second cross member member respond to this impact, and the third cross member member also responds to the impact. It is easy to suppress entry into the vehicle.
The attachment of the other end of the third cross member to the floor tunnel does not particularly require fixing, but this is because the attachment of this portion is considered to be structurally difficult and is possible. For example, the other end of the third cross member may be attached to the floor tunnel. When the other end of the third cross member is not attached to the floor tunnel portion, it is preferable to provide a clearance between the two members, thereby reducing the contact noise between the two members due to the torsion of the vehicle body during traveling. This can avoid the occurrence of vehicle interior noise.
【0013】また、該第3クロスメンバ部材は、車幅方
向に延びる閉断面をそなえていることが好ましく、これ
により、第3クロスメンバ部材の剛性を効率よく高める
ことができ、車体への側面衝突に対する車体剛性の向上
を促進しうる(請求項2)。Preferably, the third cross member has a closed cross section extending in the vehicle width direction, so that the rigidity of the third cross member can be efficiently increased, and It is possible to promote the improvement of the rigidity of the vehicle body against collision (claim 2).
【0014】[0014]
【発明の実施の形態】以下、図面により、本発明の実施
の形態について説明する。図1〜図4は本発明の一実施
形態に係る車体構造を示すもので、図1,図2はそのフ
ロントフロア部分(左半部)の斜視図であり、図3,図
4はその要部断面図である。Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show a vehicle body structure according to an embodiment of the present invention. FIGS. 1 and 2 are perspective views of a front floor portion (left half) thereof, and FIGS. It is a fragmentary sectional view.
【0015】本実施形態に係る車体構造では、図1,図
2に示すように、車体前部の床面を構成するフロントフ
ロア(フロア部)11と、フロントフロア11の側縁部
(車体両側部)に配設されたサイドシル(サイドシル
部)12と、フロントフロア11の左右中央(車体中央
部)に配設されたバックボーン(フロアトンネル部)1
4とをそなえ、フロントフロア11上に、フロントフロ
アクロスメンバフロント(第1クロスメンバ部材、単に
クロスメンバフロントという)15とフロントフロアク
ロスメンバリヤ(第2クロスメンバ部材、単にクロスメ
ンバリヤという)16と追加クロスメンバ(第3クロス
メンバ部材)20とが設けられている。また、サイドシ
ル12の上方にはセンタピラー13が立設されている。In the vehicle body structure according to the present embodiment, as shown in FIGS. 1 and 2, a front floor (floor portion) 11 constituting a floor surface at the front of the vehicle body, and side edges of the front floor 11 (both sides of the vehicle body) Section), and a backbone (floor tunnel section) 1 disposed at the left and right center of the front floor 11 (the center of the vehicle body).
4 and a front floor cross member front (first cross member member, simply referred to as cross member front) 15 and a front floor cross member rear (second cross member member, simply referred to as cross member rear) 16 on the front floor 11. And an additional cross member (third cross member member) 20. A center pillar 13 is provided upright above the side sill 12.
【0016】クロスメンバフロント15は、一端縁がサ
イドシル12に取り付けられるとともに他端縁がバック
ボーン14に取り付けられて、フロントフロア11上に
配設され前席シート(図示略)の前部を支持する。クロ
スメンバリヤ16も、一端縁がサイドシル12に取り付
けられるとともに他端縁がバックボーン14に取り付け
られて、フロントフロア11上に配設され前席シート
(図示略)の後部を支持する。なお、符号17はシート
取付ブラケットである。The cross member front 15 has one end attached to the side sill 12 and the other end attached to the backbone 14, and is disposed on the front floor 11 to support a front portion of a front seat (not shown). . The cross member rear 16 also has one end attached to the side sill 12 and the other end attached to the backbone 14, and is disposed on the front floor 11 to support a rear portion of a front seat (not shown). Reference numeral 17 denotes a seat mounting bracket.
【0017】これらのクロスメンバ15,16及びシー
ト取付ブラケット17は、いずれも従来構造(図8参
照)と同様に構成され、また、従来構造と同様に、各ク
ロスメンバ15,16の周縁部15a,16a及びシー
ト取付ブラケット17の周縁部17aを、フロントフロ
ア11,サイドシル12及びバックボーン14に例えば
スポット溶接等によって固着され取り付けられている。Each of the cross members 15, 16 and the seat mounting bracket 17 is constructed similarly to the conventional structure (see FIG. 8), and similarly to the conventional structure, the peripheral edge 15a of each cross member 15, 16 is formed. , 16a and the peripheral edge 17a of the seat mounting bracket 17 are fixedly attached to the front floor 11, the side sill 12, and the backbone 14, for example, by spot welding or the like.
【0018】追加クロスメンバ20は、フロントフロア
11上において、クロスメンバフロント15とクロスメ
ンバリヤ16との間に配設され、一端縁21がサイドシ
ル12に、前縁22がクロスメンバフロント15に、後
縁23がクロスメンバリヤ16にそれぞれボルト30を
用いて取り付けられている。なお、図2中の各孔31
は、追加クロスメンバ20及びサイドシル12,クロス
メンバ15,16に形成されたボルト挿入孔である。The additional cross member 20 is disposed on the front floor 11 between the cross member front 15 and the cross member rear 16. One end edge 21 is on the side sill 12, the front edge 22 is on the cross member front 15, The trailing edge 23 is attached to the cross member rear 16 using a bolt 30. Each hole 31 in FIG.
Are bolt insertion holes formed in the additional cross member 20, the side sill 12, and the cross members 15, 16.
【0019】この追加クロスメンバ20は、図3,図4
に示すように、アッパパネル20Uとロアパネル20L
とが重合した構造になっており、その車長方向中間部に
は、車幅方向に延びる2つの閉断面24,25が形成さ
れている。なお、追加クロスメンバ20の後部(クロス
メンバリヤ16側)は、後席乗員の足元空間40になる
ので、後部の閉断面25は、この足元空間40よりも前
方に形成されている。The additional cross member 20 is shown in FIGS.
As shown in the figure, the upper panel 20U and the lower panel 20L
And two closed cross-sections 24 and 25 extending in the vehicle width direction are formed in the middle portion in the vehicle length direction. Since the rear portion (the cross member rear 16 side) of the additional cross member 20 becomes the foot space 40 of the rear occupant, the closed cross section 25 of the rear portion is formed ahead of the foot space 40.
【0020】つまり、アッパパネル20Uは、図3に示
すように、略平坦な前縁部22U,後縁部23Uと、こ
れらの前縁部22U,後縁部23U間においてクロスメ
ンバリヤ車幅方向へ延びるように形成された下向きの凹
所24U,25Uとをそなえている。ロアパネル20L
は、図3に示すように、略平坦な前縁部22L,後縁部
23Lと、これらの前縁部22L,後縁部23L間にお
いて車幅方向へ延びるように形成された上向きの凹所2
4L,25Lとをそなえている。これらのアッパパネル
20Uとロアパネル20Lとが重合することにより、凹
所24Uと凹所24Lとにより閉断面24が形成され、
凹所25Uと凹所25Lとにより閉断面25が形成され
ている。That is, as shown in FIG. 3, the upper panel 20U has a substantially flat front edge portion 22U and a rear edge portion 23U, and a cross member rear width direction between the front edge portion 22U and the rear edge portion 23U. It has downward recesses 24U and 25U formed so as to extend. Lower panel 20L
As shown in FIG. 3, a substantially flat front edge portion 22L and a rear edge portion 23L, and an upward recess formed between the front edge portion 22L and the rear edge portion 23L so as to extend in the vehicle width direction. 2
4L and 25L are available. When these upper panel 20U and lower panel 20L overlap, closed section 24 is formed by recess 24U and recess 24L,
The closed section 25 is formed by the recess 25U and the recess 25L.
【0021】アッパパネル20Uとロアパネル20Lと
は、各前縁部22U,22Lどうし、及び、後縁部23
U,23Lどうしとを互いに結合されるとともに、凹所
24U,25U間に形成された下向きの凸部26Uと凹
所24L,25L間に形成された上向きの凸部26Lと
を互いに結合されて、予め一体化された上でフロントフ
ロア11上に取り付けられる。なお、アッパパネル20
Uとロアパネル20Lとの各部の結合には、スポット溶
接等を用いることができる。The upper panel 20U and the lower panel 20L are connected to each other by the front edges 22U, 22L and the rear edge 23.
U and 23L are connected to each other, and a downward convex portion 26U formed between the concave portions 24U and 25U and an upward convex portion 26L formed between the concave portions 24L and 25L are connected to each other. It is mounted on the front floor 11 after being integrated in advance. The upper panel 20
Spot welding or the like can be used to connect each part of the U and the lower panel 20L.
【0022】また、追加クロスメンバ20の前縁22は
各前縁部22U,22Lにより、後縁23は各後縁部2
3U,23Lにより、それぞれ構成され、追加クロスメ
ンバ20の一端縁21は、アッパパネル20Uの各凹所
24U,25Uの一端側(車体側部の側)に形成された
フランジ部21Uにより構成される。また、追加クロス
メンバ20の他端縁(車体中央のバックボーン14側端
縁)は、アッパパネル20Uの各凹所24U,25Uの
他端側(車体中央のバックボーン14側)に形成された
フランジ部27Uにより構成されるが、このフランジ部
27Uは、バックボーン14の対向面と略平行に形成さ
れ、且つ、バックボーン14に対して隙間28をもつよ
うに配設されている。また、ここでは、ロアパネル20
Lの各凹所24L,25Lの他端側(車体中央のバック
ボーン14側)27Lには特にフランジ部は設けられな
いが、この他端側27Lもバックボーン14に対して隙
間29をもつように配設されている。The front edge 22 of the additional cross member 20 is formed by the front edges 22U and 22L, and the rear edge 23 is formed by the rear edge 2
3U and 23L, respectively, and one end edge 21 of the additional cross member 20 is formed by a flange portion 21U formed on one end side (on the side of the vehicle body) of each of the recesses 24U and 25U of the upper panel 20U. Further, the other end edge of the additional cross member 20 (the end edge on the side of the backbone 14 at the center of the vehicle body) is connected to the flange portion 27U formed on the other end side (the side of the backbone 14 at the center of the vehicle body) of each of the recesses 24U and 25U of the upper panel 20U. The flange portion 27U is formed substantially parallel to the facing surface of the backbone 14, and is disposed so as to have a gap 28 with respect to the backbone 14. Also, here, the lower panel 20
The other end (the backbone 14 at the center of the vehicle body) 27L of each of the recesses 24L and 25L of L has no particular flange portion, but the other end 27L is also arranged so as to have a gap 29 with respect to the backbone 14. Has been established.
【0023】このように、追加クロスメンバ20のバッ
クボーン14側端縁27U,27Lをバックボーン14
に取り付けて(結合して)いないのは、バックボーン1
4に対してボルト締めを行なうことが困難なためであ
り、このようなボルト締めが可能であれば追加クロスメ
ンバ20のバックボーン14側端縁27U及び/又は2
7Lをボルト締めによりバックボーン14に取り付けて
もよい。As described above, the edges 27U and 27L of the additional cross member 20 on the backbone 14 side are
Not attached to the backbone 1
This is because it is difficult to perform bolting on the backbone 4 and, if such bolting is possible, the edge 27U and / or 2U of the additional cross member 20 on the backbone 14 side.
7L may be attached to the backbone 14 by bolting.
【0024】また、追加クロスメンバ20のバックボー
ン14側端縁27U,27Lとバックボーン14との間
に隙間(クリアランス)28,29を設けているのは、
走行時の車体の捩れに起因して生じやすい両者間(バッ
クボーン14側端縁27U,27Lとバックボーン14
との間)の接触音を回避して、車室内騒音の発生要因を
抑えるためである。The gaps (clearance) 28, 29 are provided between the backbone 14 and the backbone 14 side edges 27U, 27L of the additional cross member 20.
Between the two (the backbone 14 side edges 27U, 27L and the backbone 14
This is to avoid the contact noise of (i.
【0025】本発明の一実施形態としての車体構造は、
上述のように構成されているので、車両の側方から衝撃
(側面衝撃)に対して、効率よく対応することができる
ようになる。つまり、車両に側面衝撃があると、衝撃入
力は、センタピラー13,フロントドア,リヤドア(何れ
も図示略)の下部に加わるが、衝撃がフロントドア下部
に入力された場合には、主としてセンタピラー13とフ
ロントピラーとサイドシル12とに衝撃が伝わり、衝撃
がリヤドア下部に入力された場合には、主としてセンタ
ピラー13とリヤピラーとサイドシル12とに衝撃が伝
わることになる。The vehicle body structure as one embodiment of the present invention
With the configuration described above, it is possible to efficiently respond to an impact (side impact) from the side of the vehicle. That is, when a side impact is applied to the vehicle, the impact input is applied to the lower portion of the center pillar 13, the front door, and the rear door (all are not shown). When an impact is transmitted to the front pillar 13, the front pillar, and the side sill 12, and the impact is input to a lower portion of the rear door, the impact is mainly transmitted to the center pillar 13, the rear pillar, and the side sill 12.
【0026】このように、側面衝撃時には多くの場合、
センタピラー13に対して車室内側へ向かう衝撃力が加
わることになるが、側面衝撃時に車室内空間を確保する
という観点からは、このように特に負担の大きいセンタ
ピラー13が車室内へ進入しないように抑制することが
重要になる。この点、本車体構造では、センタピラー1
3の基部を支持するフロントフロア11に、クロスメン
バ15,16に加えて追加クロスメンバ20が設けられ
ているので、この部分のフロントフロア11の側面衝突
に対する剛性は大幅に高まり、センタピラー13に対し
て車室内側へ向かう衝撃力が加わった場合にも、センタ
ピラー13の車室内へ進入量を、大幅に低減することが
できるようになる。Thus, in the case of a side impact, in many cases,
An impact force directed toward the vehicle interior is applied to the center pillar 13, but from the viewpoint of securing the vehicle interior space in the event of a side impact, the particularly heavy burden of the center pillar 13 does not enter the vehicle interior. It is important to control the situation. In this regard, in the vehicle body structure, the center pillar 1
Since the additional floor member 20 is provided on the front floor 11 supporting the base portion of the third floor in addition to the cross members 15 and 16, the rigidity of the front floor 11 against the side collision of the front floor 11 is greatly increased. On the other hand, even when an impact force directed toward the vehicle interior is applied, the amount of the center pillar 13 entering the vehicle interior can be significantly reduced.
【0027】これにより、センタピラー13やサイドシ
ル12さらにはフロントピラー(図示略)等を大幅に補
強することなく、側面衝突に対向しうる車体剛性が向上
し、側面衝突があった場合にも車室内空間の確保をより
確実に行なうことができるようになる効果がある。特
に、本実施形態では、車幅方向へ延びた複数(ここでは
2つ)の閉断面24,25を有する構造となっているの
で、上方に前席シートがあって側面衝突に有効なフロア
剛性を効率よく向上させることができる。As a result, the rigidity of the vehicle body which can face a side collision is improved without greatly reinforcing the center pillar 13, the side sill 12, and the front pillar (not shown). There is an effect that the interior space can be secured more reliably. In particular, in the present embodiment, since the structure has a plurality (two in this case) of closed cross sections 24 and 25 extending in the vehicle width direction, there is a front seat above and a floor rigidity effective for a side collision. Can be efficiently improved.
【0028】また、本実施形態では、予めアッパパネル
20Uとロアパネル20Lとを結合して追加クロスメン
バ20を組み立てて1部品としておき、クロスメンバ1
5,16等を組み付けられたフロントフロア11上に配
置しボルト締めによって、追加クロスメンバ20を車体
に取り付けるので、追加クロスメンバ20を必要に応じ
て取付けるようにすることができる。In this embodiment, the upper panel 20U and the lower panel 20L are connected in advance to assemble the additional cross member 20 into one part, and the cross member 1
Since the additional cross member 20 is attached to the vehicle body by arranging 5, 16 and the like on the assembled front floor 11 by bolting, the additional cross member 20 can be attached as needed.
【0029】したがって、側面衝突に対してよりフロア
剛性が要求される場合には、追加クロスメンバ20を取
り付け、そうでない場合には、追加クロスメンバ20を
取り付けずに、この追加クロスメンバ20の取付空間
(すなわち、全席シート下の空間)をナビゲーションシ
ステムの本体やCDユニット等の設置スペースとするな
ど、他の用途に転用することもできる。Therefore, when additional floor rigidity is required for side collision, the additional cross member 20 is attached. Otherwise, the additional cross member 20 is attached without attaching the additional cross member 20. The space (that is, the space under all the seats) can be used for other purposes, such as a space for installing the main body of the navigation system and the CD unit.
【0030】追加クロスメンバ20の車体側への取付
(結合)は、ボルト締めに限らずスポット溶接をはじめ
とした溶接を用いるなど、他の結合手段を用いても良
い。以上、本発明の実施形態を説明したが、本発明はか
かる実施形態に限定されるものではなく、本発明の趣旨
を逸脱しない範囲で種々変形して実施することができ
る。The attachment (coupling) of the additional cross member 20 to the vehicle body is not limited to bolting, and other coupling means such as welding such as spot welding may be used. The embodiments of the present invention have been described above. However, the present invention is not limited to the embodiments, and can be variously modified and implemented without departing from the gist of the present invention.
【0031】例えば、上記の実施形態では、追加クロス
メンバが、車幅方向へ延びた閉断面24,25を2つ有
する構造となっているが、閉断面はより多数設けてもよ
く、また、図5に示す追加クロスメンバ201のよう
に、アッパパネル201Uとロアパネル201Lとによ
って閉断面211を1つだけ形成するようにしても良
い。For example, in the above embodiment, the additional cross member has a structure having two closed sections 24 and 25 extending in the vehicle width direction. However, a larger number of closed sections may be provided. Like the additional cross member 201 shown in FIG. 5, only one closed cross section 211 may be formed by the upper panel 201U and the lower panel 201L.
【0032】また、このような閉断面を形成する場合、
図5に示す追加クロスメンバ202のように、アッパパ
ネル202Uとロアパネル202Lとの一方(ここで
は、ロアパネル202L)を主体に屈曲形成して、複数
(ここでは2つ)又は単数の閉断面を形成するようにし
ても良い。さらに、閉断面の形状は剛性向上効果のある
ものであればよく、上記実施形態(図3)や上記変形例
(図5,図6)のものに限定されない。In the case of forming such a closed section,
Like the additional cross member 202 shown in FIG. 5, one of the upper panel 202U and the lower panel 202L (here, the lower panel 202L) is bent and formed to form a plurality (here, two) or a single closed cross section. You may do it. Furthermore, the shape of the closed cross section only needs to have a rigidity improving effect, and is not limited to the embodiment (FIG. 3) or the modification (FIGS. 5 and 6).
【0033】また、追加クロスメンバに閉断面を設けな
い構造も考えられる。例えば、図7に示すように、追加
クロスメンバ203を1枚のパネルで構成して、このパ
ネルに1又は複数の凹凸221,222,223を設け
て(すなわち、コルゲート状に形成し)、側面衝突に対
して有効な剛性増強を行なうようにしても良い。A structure in which the additional cross member does not have a closed cross section is also conceivable. For example, as shown in FIG. 7, the additional cross member 203 is constituted by one panel, and one or a plurality of irregularities 221, 222, 223 are provided on this panel (that is, formed in a corrugated shape), and Effective stiffness enhancement against collision may be performed.
【0034】[0034]
【発明の効果】以上説明したように、本発明の車体構造
(請求項1)によれば、車体側部に側面衝突があると、
この衝撃に対して、第1クロスメンバ部材と第2クロス
メンバ部材とが対応するのに加えて第3クロスメンバ部
材も対応するようになり、大きな側面衝突に対しても車
体側部の車内側への進入を抑制することが容易になり、
簡素な補強構造によって効率よく乗員のための室内空間
を確保することができるようになる。As described above, according to the vehicle body structure of the present invention (claim 1), when there is a side collision on the vehicle body side,
The first cross member member and the second cross member member respond to this impact, and the third cross member member also responds to the impact. It is easier to control the entry into
With the simple reinforcing structure, it is possible to efficiently secure the cabin space for the occupant.
【0035】また、該第3クロスメンバ部材には、車幅
方向に延びる閉断面をそなえるようにすれば、さらに側
面衝撃に対する車体剛性の向上を促進することができ、
車体への側面衝突に対する車体剛性の向上を促進するこ
とができ、簡素な補強構造によってより一層効率よく大
きな側面衝撃に対応することができるようになる(請求
項2)。When the third cross member has a closed cross section extending in the vehicle width direction, the rigidity of the vehicle body against side impact can be further improved.
It is possible to promote improvement of the rigidity of the vehicle body against side collision with the vehicle body, and it is possible to more efficiently cope with a large side impact by a simple reinforcing structure.
【図1】本発明の一実施形態にかかる車体構造を示すフ
ロントフロア部分(左半部)の斜視図である。FIG. 1 is a perspective view of a front floor portion (left half) showing a vehicle body structure according to an embodiment of the present invention.
【図2】本発明の一実施形態にかかる車体構造へ第3ク
ロスメンバ部材を取り付けを説明するフロントフロア部
分(左半部)の斜視図である。FIG. 2 is a perspective view of a front floor portion (left half) illustrating attachment of a third cross member member to the vehicle body structure according to the embodiment of the present invention.
【図3】本発明の一実施形態にかかる車体構造の要部を
示す断面図(図1のA−A矢視断面図)である。FIG. 3 is a cross-sectional view (a cross-sectional view taken along the line AA in FIG. 1) showing a main part of the vehicle body structure according to the embodiment of the present invention.
【図4】本発明の一実施形態にかかる車体構造の要部を
示す断面図(図1のB−B矢視断面図)である。FIG. 4 is a cross-sectional view (a cross-sectional view taken along a line BB in FIG. 1) showing a main part of the vehicle body structure according to the embodiment of the present invention.
【図5】本発明の一実施形態にかかる車体構造の第1変
形例を示す要部断面図(図1のA−A矢視断面に相当す
る図)である。FIG. 5 is a cross-sectional view of a main part (a view corresponding to a cross section taken along the line AA in FIG. 1) showing a first modification of the vehicle body structure according to the embodiment of the present invention;
【図6】本発明の一実施形態にかかる車体構造の第2変
形例を示す要部断面図(図1のA−A矢視断面に相当す
る図)である。FIG. 6 is a cross-sectional view of a main part (a view corresponding to a cross section taken along line AA of FIG. 1) showing a second modification of the vehicle body structure according to the embodiment of the present invention;
【図7】本発明の一実施形態にかかる車体構造の第3変
形例を示す要部断面図(図1のA−A矢視断面に相当す
る図)である。7 is a cross-sectional view of a main part (a view corresponding to a cross section taken along the line AA in FIG. 1) showing a third modification of the vehicle body structure according to the embodiment of the present invention;
【図8】従来の車体構造を示すフロントフロア部分(左
半部)の斜視図である。FIG. 8 is a perspective view of a front floor portion (left half) showing a conventional vehicle body structure.
【図9】従来の車体構造の要部を示す断面図(図8のC
−C矢視断面図)である。9 is a cross-sectional view showing a main part of a conventional vehicle body structure (C in FIG. 8).
-C section view).
【図10】従来の車体構造の要部を示す断面図(図8の
D−D矢視断面図)である。FIG. 10 is a cross-sectional view (a cross-sectional view taken along the line DD in FIG. 8) showing a main part of a conventional vehicle body structure.
11 フロントフロア(フロア部) 12 サイドシル(サイドシル部) 14 バックボーン(フロアトンネル部) 13 センタピラー 15 フロントフロアクロスメンバフロント(第1クロ
スメンバ部材) 16 フロントフロアクロスメンバリヤ(第2クロスメ
ンバ部材) 20 追加クロスメンバ(第3クロスメンバ部材)Reference Signs List 11 front floor (floor part) 12 side sill (side sill part) 14 backbone (floor tunnel part) 13 center pillar 15 front floor cross member front (first cross member member) 16 front floor cross member rear (second cross member member) 20 Additional cross member (third cross member member)
Claims (2)
と、 車体中央部の前後方向に配設されたフロアトンネル部
と、該サイドシル部と該フロアトンネル部との間に配設
されたフロア部と、該フロア部上に配設され一端縁が該
サイドシル部に取り付けられるとともに他端縁が該フロ
アトンネル部に取り付けられてシートの前側を支持する
第1クロスメンバ部材と、 該フロア部上の該第1クロスメンバ部材の後方に配設さ
れ一端縁が該サイドシル部に取り付けられるとともに他
端縁が該フロアトンネル部に取り付けられて該シートの
後側を支持する第2クロスメンバ部材と、 該フロア部上の該第1クロスメンバ部材と該第2クロス
メンバ部材との間に並列して配設され一端縁が該サイド
シル部に前縁が該第1クロスメンバ部材に後縁が該第2
クロスメンバ部材にそれぞれ取り付けられた第3クロス
メンバ部材とを有することを特徴とする、車体構造。1. A side sill portion disposed on both sides of a vehicle body, a floor tunnel portion disposed in a front-rear direction of a center portion of the vehicle body, and a floor disposed between the side sill portion and the floor tunnel portion. A first cross member member disposed on the floor portion and having one end edge attached to the side sill portion and the other end edge attached to the floor tunnel portion to support a front side of the seat; A second cross member member disposed rearward of the first cross member member and having one end edge attached to the side sill portion and the other end edge attached to the floor tunnel portion to support the rear side of the seat; The first cross member member is arranged in parallel between the first cross member member and the second cross member member on the floor portion. 2
A body structure comprising: a third cross member member attached to each of the cross member members.
延びる閉断面をそなえていることを特徴とする、請求項
1記載の車体構造。2. The vehicle body structure according to claim 1, wherein said third cross member member has a closed cross section extending in a vehicle width direction.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001082902A JP4032657B2 (en) | 2001-03-22 | 2001-03-22 | Body structure |
KR10-2002-0013694A KR100442846B1 (en) | 2001-03-22 | 2002-03-14 | Vehicle Body Structure |
DE10212218A DE10212218B4 (en) | 2001-03-22 | 2002-03-19 | Vehicle body structure |
CNB021073988A CN1169688C (en) | 2001-03-22 | 2002-03-20 | Structure of carbody |
US10/102,607 US6604781B2 (en) | 2001-03-22 | 2002-03-20 | Vehicle body structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001082902A JP4032657B2 (en) | 2001-03-22 | 2001-03-22 | Body structure |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2002274438A true JP2002274438A (en) | 2002-09-25 |
JP4032657B2 JP4032657B2 (en) | 2008-01-16 |
Family
ID=18938786
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2001082902A Expired - Fee Related JP4032657B2 (en) | 2001-03-22 | 2001-03-22 | Body structure |
Country Status (5)
Country | Link |
---|---|
US (1) | US6604781B2 (en) |
JP (1) | JP4032657B2 (en) |
KR (1) | KR100442846B1 (en) |
CN (1) | CN1169688C (en) |
DE (1) | DE10212218B4 (en) |
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2001
- 2001-03-22 JP JP2001082902A patent/JP4032657B2/en not_active Expired - Fee Related
-
2002
- 2002-03-14 KR KR10-2002-0013694A patent/KR100442846B1/en active IP Right Grant
- 2002-03-19 DE DE10212218A patent/DE10212218B4/en not_active Expired - Fee Related
- 2002-03-20 CN CNB021073988A patent/CN1169688C/en not_active Expired - Lifetime
- 2002-03-20 US US10/102,607 patent/US6604781B2/en not_active Expired - Lifetime
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JP2008149943A (en) * | 2006-12-19 | 2008-07-03 | Honda Motor Co Ltd | Vehicle body floor structure |
JP2010264980A (en) * | 2010-09-01 | 2010-11-25 | Mazda Motor Corp | Lower body structure of sliding door vehicle |
JP2017081511A (en) * | 2015-10-30 | 2017-05-18 | トヨタ自動車株式会社 | Vehicle lower part structure |
Also Published As
Publication number | Publication date |
---|---|
CN1169688C (en) | 2004-10-06 |
KR100442846B1 (en) | 2004-08-02 |
JP4032657B2 (en) | 2008-01-16 |
US6604781B2 (en) | 2003-08-12 |
CN1376601A (en) | 2002-10-30 |
DE10212218B4 (en) | 2005-11-17 |
DE10212218A1 (en) | 2002-10-02 |
US20020167200A1 (en) | 2002-11-14 |
KR20020075229A (en) | 2002-10-04 |
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